IBM DJSA-205, Specifications

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10.5 Data Register
This register is used to transfer data blocks between the device data buffer and the host. It is also the
register through which sector information is transferred on a Format Track command and the configuration
information is transferred on an Identify Device command.
All data transfers are 16 bits wide, except for ECC byte transfers, which are 8 bits wide. Data transfers are
PIO only.
The register contains valid data only when DRQ = 1 is in the Status Register.
10.6 Device Control Register
0
0
1
–IEN
2
SRST
3
1
4
–
5
–
6
–
7
–
Device Control Register
Figure 50. Device Control Register
Bit Definitions
Interrupt Enable. When IEN = 0, and the device is selected, the device interrupts to the
host will be enabled. When IEN = 1, or the device is not selected, the device interrupts to
the host will be disabled. -IEN
Software Reset. The device is held at reset when RST = 1. Setting RST = 0 again
enables the device. To ensure that the device recognizes the reset, the host must set
RST = 1 and wait for at least 5 microseconds before setting RST = 0. SRST (RST)
Travelstar 32GH/30GT/20GN hard disk drive specifications
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